Review reviewHigh

CVE-2022-48981

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Remove errant put in error path drm_gem_shmem_mmap() doesn't own this reference, resulting in the GEM object getting prematurely freed leading to a later use-after-free.

CVSS: 7.8
EPSS: 0.25%
CISA KEV: Not listed
Published: 2024.10.22

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.25%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Linux Linux, linux kernel
Affected versions: >= 2194a63a818db71065ebe09c8104f5f021ca4e7b < 585a07b820059462e0c93b76c7de2cd946b26b40, >= 2194a63a818db71065ebe09c8104f5f021ca4e7b < 6a4da05acd062ae7774b6b19cef2b7d922902d36, >= 2194a63a818db71065ebe09c8104f5f021ca4e7b < 83e3da8bb92fcfa7a1d232cf55f9e6c49bb84942, >= 2194a63a818db71065ebe09c8104f5f021ca4e7b < 586847b98e20ab02212ca5c1fc46680384e68a28, >= 2194a63a818db71065ebe09c8104f5f021ca4e7b < 24013314be6ee4ee456114a671e9fa3461323de8, >= 5.2, >= 5.2 < 5.4.227, >= 5.5 < 5.10.159, >= 5.11 < 5.15.83, >= 5.16 < 6.0.13, 6.1
Fixed versions: 5.4.227, 5.10.159, 5.15.83, 6.0.13

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux Linux, linux kernel and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-416